粉煤灰改良氯盐渍土强度特性试验研究  

Experimental Study on Improvement Intensity of Chlorine Saline with Fly Ash

作　　者：张超[1] 党进谦[1] 马晓婷[1] 

机构地区：[1]西北农林科技大学水利与建筑工程学院,陕西杨凌712100

出　　处：《人民黄河》2011年第7期132-134,共3页Yellow River

摘　　要：通过对粉煤灰和氯盐渍土物理化学成分的理论分析和不固结不排水条件下室内常规三轴剪切试验,对粉煤灰改良氯盐渍土的抗剪强度特性进行了研究。结果表明:在试验掺量范围内,在氯盐渍土中添加粉煤灰可以提高其强度,且粉煤灰掺量越大,强度越高;在试验含盐量范围内,同一粉煤灰掺量条件下的氯盐渍土抗剪强度及抗剪强度指标都随着含盐量的增加而逐渐减小。With the theoretical analysis of the fly ash and chlorine saline soil physical and chemical composition,using unconsolidated undrained test of chlorine saline soil improved by fly ash,through conventional triaxial shear apparatus,studying the influence of fly ash doped amount and salinity as well as other factors on the shear strength with its indicators,come to a conclusion that adding a certain ratio of fly ash in the chlorine saline soil can be very good to increase its intensity when the more fly ash the higher of intensity within the trial dosage.When use the same fly ash doped amount to improve the amount of chlorine saline soil in different salinity,the shear intensity of improved chlorine saline soil and its indicators in the context of within salinity will reduce gradually increasing as the salinity.Using fly ash can increase the intensity of improved chlorine saline soil,but the impact of fly ash on the intensity of chlorine saline soil does not change the intensity of its own laws in the unsaturated chlorine saline soil.

关 键 词：抗剪强度 试验 粉煤灰 氯盐渍土 

分 类 号：TU411.7[建筑科学—岩土工程] TU448[建筑科学—土工工程]